[Chore] Add notification in asf.yaml (#17075)

we try to recover discussion in #17069 but when I merged
into master, I got error email

```
An error occurred while processing the github feature in .asf.yaml:

GitHub discussions can only be enabled if a mailing list target exists for it.
```

I check and find we should also add `notification` section to
make it effect, according to https://github.com/apache/infrastructure-asfyaml?tab=readme-ov-file#repository-features

so this patch it to correct #17069

Author: zhongjiajie

.asf.yaml

@@ -55,3 +55,9 @@ github:
         required_approving_review_count: 2
   features:
     discussions: true
+
+notifications:
+  commits: commits@dolphinscheduler.apache.org
+  issues: commits@dolphinscheduler.apache.org
+  pullrequests: commits@dolphinscheduler.apache.org
+  discussions: commits@dolphinscheduler.apache.org